Improvement in nut-locks



J'. N. ARVIN.

NUT-LOCK.

Patented .Tunev 6, .1876;

N.PETERS. PHOTO-LIYHOGRAP wAsHlNGTuN D C PATENT OFFICE.

JOHN-N. ARVIN,`O]3` VALPARAISO, INDIANA, ASSIGNOR OF TWO-THIRDS `HIS RIGHT TO ROBERTLEARMOUTH, OF ALLIANCE, OHIO, AND DAVID E. SIMONS, OF VALPARAISO, INDIANA.

IMPRCVEMENT |N Nur-LocKs.`

Specification forming part of Letters Patent No. 138,260, datedJ une 6, 1876; application filed Marel; 27, 1816.

To all whomit may concern ABe it known that I, JOHN N. ARVIN, of

Valparaiso, in the countyA of Porter and' State ot Indiana, have invented certain new and useful Improvements in NutLocls; `and I do `hereby declare that the following is a full,

clear, and exact description thereof, which will enable others skilled in the art to which it appertains to makeand use the same, referencebeng had to the accompanying drawings, and

to the letters of reference marked thereon,

which form a part of this specification.

My invention relates to devicesfor locking two nuts at` one timepand it consists in a hinged drop-bar, having its ends bent at right angles to fall down against the inner sides ot' two nuts and `loch the same, as. will be hereinafter more fully set forth.

In the annexed drawing, Figure l is a side e elevation ot' a railroad-joint embodying my invention. Fig. 2` is a cross-section of' the same through the line a; m, Fig. l. Fig. 3 is a perspective view of a plate or washer with my drop-bar hinged thereto.

A A represent the ends of' two adjacent railroad-rails. B B are the ordinary shbars;

O C, the bolts, and D D the nuts thereon. On

the ends ot' the bolts G,bei'ore the nuts D are screwed thereon, is placed a plate or washer, G, held close to the fish-bar by the nuts. The upper edge of this plate or washer is out and bent to form a longitudinal tube, a, in the center, and through the sam'e is passed a bar, b. The ends of this bar are bent at nearly right angles, forming two parallel arms or legs, b bf. The bar b drops down after the nuts D D have been screwed up, so that the two arms b will come close against the inner sides of the nuts, andthereby lock 'them in place, the legs b bibeing inclinedslightly outward, Iand, being spring-legs, are pressed inward when the nuts D are turned up, and txed between the nuts, thus holding the nuts securely7 in position, and the spring-pressure of the legs prevents the bar b from getting out of place.

This nut-lock is very simple, the drop-bar having only two bends, and, falling down be-v tween the two nuts, locks them both.

It desired, the plate G may be dispensed with, and the drop-bar hinged in any suitable manner to the lish-bar, rails, or other piece Athrough which the nuts pass.

I am aware that it is not newfto use a hinged bent clasp to secure a nut, the clasp having four bends and inclosing three sides of the nut, and I do not claim such as my invention; but in my invention the arms only have two bends, and at the same time hold two nuts securely in position, thus requiring but two-thirds of the metal to hold two nuts that has heretofore been usedto hohl one nut, and at the samey time requiring less labor to construct it.

JOHN N. ARVIN.

Witnesses:

WILL. H. BUELL, G. O. BULL. 

